I'm surprised no one else is jumping in to offer assistance. The DIY section seems to be pretty slow these days
I don't flow much as far as reflectors go. I do know they help reflect but they also make for inconsistent readings as the light hits the reflectors and gets thrown all around. Compared to straight cobs which are directional anyways and do a pretty good job at focusing its light. If your in a tent I would consider running them bare.Just to check with experts..
Are 60degree lenses ok for 4x180w panels..
For 120x120x200 cm..
Im affraid that the space wont be covered as good as with 90degree lenses.
And that the light will hurt plans wirh 60degree lenses
A canot find angelina lenses on alibaba,ebay or aliexpres